How a geek cracked the Jeopardy! code

Roger Craig had never been on Jeopardy! before, but by the end of his first day of taping, he’d won five games in a row, the most lucrative day for any contestant in the show’s history, including the most lucrative game in the show’s history. His secret? A web app that modeled the show’s all too predictable question sequences.

(Last week Roger won the Jeopardy! Tournament of Champions.)